from tkinter import *

print('Введите начальную координату X:')
X = int(input())
print ('Введите начальную координату Y:')
Y = int(input())
print ('Введите коэфицент увеличения N:')
N = int(input())
 
 coords = [0,0,10,0,10,10,20,10,20,20,0,20]
 
 if N == 0 and X>=0 X<=500 and Y>=0 and Y<=500:
     pass
 else:
     if N > 0 and 0*N+X>=0 and 0*N+Y>=0 20*N+X<=500 and 20*N+Y<=500:
         pass
     else:if N < 0 and 20*N+X>=0 and 20*N+Y>=0 and 0*N+X<=500 and 0*N+X<=500:
         pass
     else:
         print ('Размер фигуры превышает максимальный размер поля')
         exit() 
    
    root = Tk ()
    root.tittle("ИТ марафон")
    root.geometry("500x500")
    canvas = Canvas(bg="white" , width=500 ,height=500)
    canvas.pack(anchor=CENTER, expand=1)
    
    canvas.create_polygon(coords[0] *N+X, coords[1] *N+Y,
                          coords[2] *N+X, coords[3] *N+Y,
                          coords[4] *N+X, coords[5] *N+Y,
                          coords[6] *N+X, coords[7] *N+Y,
                          coords[8] *N+X, coords[9] *N+Y,
                          coords[0] *N+X, coords[1] *N+Y)
    
    root.mainloop()
